Test Report — ASD Performance and Reliability …xtralis.com/misc/VIPAC Test Report - ASD Performance and...Vipac Reference: 30V-11-0424-TRP- 264755-0 ASD – Performance and Reliability

Vipac Reference: 30V-11-0424 -TRP- 264755-0 Date Vipac Engineers & Scientists Ltd Melbourne, Australia

Test Report

Aspirated Smoke Detectors (ASD) Performance and Reliability Testing in Dust Laden Environment

Vipac Reference: 30V-11-0424-TRP- 264755-0

ASD – Performance and Reliability Testing In Dust Laden Environment Page ii of 29

TABLE OF CONTENTS 1. INTRODUCTION 4 2. SCOPE 4 3. ASD units UNDER TEST 4 4. TEST SETUP 5

4.1 Laboratory .................................................................................................................................5 4.2 Dust Chamber ...........................................................................................................................5 4.3 Smoke Generation Box and Smoke Chamber..........................................................................6 4.4 Clean Air Sampling ...................................................................................................................7 4.5 ASD Units Setup .......................................................................................................................7 4.6 Test Instruments .......................................................................................................................8 4.7 Test Dust...................................................................................................................................8 4.8 Test Smoke...............................................................................................................................8

5. TEST PROCEDURE 9 5.1 Test Cycle .................................................................................................................................9 5.2 Sensitivity (Detection Performance)........................................................................................10 5.3 Pass/Fail Criteria.....................................................................................................................10

6. RESULTS 11 6.1 ASD Sensitivity (Detection Performance) ...............................................................................11 6.2 ASD Hardware Faults and Failures ........................................................................................12 6.2.1 Filter Faults .............................................................................................................................12 6.2.2 Critical Failures .......................................................................................................................12

7. CONCLUSIONS 14 APPENDIX A 15

DustTrack (Dust Chamber) Calibration Certificate............................................................................15 APPENDIX B 17

VelociCalc Plus Air Velocity Meter (TSI) Calibration.........................................................................17 APPENDIX C 22

ASHRAE 52/76 Calibration Certificate ..............................................................................................22 APPENDIX D 23

DustTrack Loading Analysis..............................................................................................................23 APPENDIX E 26

Sensitivity (Normalised) Calculation..................................................................................................26 APPENDIX F 27

Detailed Test Results – Individual ASD Units ...................................................................................27


ASD – Performance and Reliability Testing In Dust Laden Environment Page iii of 29

TABLE OF FIGURES Figure 1: Test Setup – Schematic.......................................................................................................5

Figure 2: Dust Chamber ......................................................................................................................5

Figure 3: Smoke Generation Box and Smoke Chamber.....................................................................6

Figure 4: Clean Air Sampling Arrangement (HEPA filter) ...................................................................7

Figure 5: Test Cycle Steps..................................................................................................................9

Figure 6: ASD sensitivity (normalised) trend lines with critical fault and maintenance indicators ....11

Figure 7: SecuriRAS ASD 535-3 Filters (metallic mesh) ..................................................................12

Figure 8: Summary Graph Dust Loading 1 - 10 ................................................................................24

Figure 9: Summary Graph Dust Loading 11 - 13 ..............................................................................24

Figure 10: Summary Graph Dust Loading 14 - 15 ............................................................................25

LIST OF TABLES Table 1: ASD Units Under Test ...........................................................................................................4

Table 2: Dust Concentration (Dust Chamber / ASD Inlets).................................................................6

Table 3: ASD Particulate Filter Types .................................................................................................7

Table 4: ASD Baseline Flow-rates ......................................................................................................7

Table 5: ASD Configuration / Pipe Modelling Tools ............................................................................8

Table 6: Test Instruments....................................................................................................................8

Table 7: SecuriRAS ASD 535-3 Sensitivity Change with Filter Replacement ..................................12

Table 8: ASD Faults Timeline / Corrective Actions ...........................................................................13

Table 9: ASD Sensitivity Degradation ...............................................................................................14

Table 10: DustTrak Settings..............................................................................................................23

Table 11: Dust Loading Analysis.......................................................................................................23

Table 12: DustTrack Comparison Average Reading.........................................................................23

Table 13: Detailed Results: Smoke Tests / Normalised Sensitivity...................................................29


ASD – Performance and Reliability Testing in Dust Laden Environment Page 4 of 29

1. INTRODUCTION VIPAC Engineers & Scientists Ltd. was commissioned by Xtralis to carry out performance and reliability

testing on different models of Aspirated Smoke Detector (ASD) units in a dust-laden environment. Testing

was conducted at VIPAC laboratory in Port Melbourne, Australia, between the 7th and 22nd February

2012.

2. SCOPE The scope of the investigation was to compare the detection performance and reliability of ASD units

when exposed to (sampling) dust-laden air. The most common physical effects on any ASD unit from dust

sampling are:

• Contamination of optical components,

• Soiling of internal surfaces,

• Clogging of internal air filters and air paths,

• Abrasion/seizure of moving parts,

• Deterioration or failure of electrical components.

Sampling of dust is unavoidable in almost all environments and has the potential to compromise detection performance and reliability of an ASD unit resulting in increased demand for scheduled and unscheduled

maintenance including replacement of components or detector itself after critical failures. Specifically this

investigation measured, recorded and analysed:

• Reduction in sensitivity (detection performance),

• Smoke detection reliability (notification when sensitivity is compromised),

• Operational reliability (component failure),

• Fault reporting (notification of required service).

3. ASD UNITS UNDER TEST Table 1 lists the ASD models and manufacturers used for this investigation. All ASD units under test were

brand new.

No. Manufacturer Model Serial Number

1 Xtralis VLI-880 10811002

Smoke Detector: SecuriRAS ASD 535-3 5000623.0103.010409 Securiton: 022.235636

2 Securiton

Smoke Sensor: SSD 535-2 5000613.0103.080808 Securiton: 022.235679

3 System Sensor FAAST 8100 0026C800049F

Smoke Detector: TITANUS PRO SENS (TP-1-SL) 308698 4 Wagner

Detector Module: DM-TP-01-L 384109

Table 1: ASD Units Under Test



4. TEST SETUP The test setup comprised a Dust Chamber, Smoke Chamber, Smoke Generation Box and HEPA filtration arrangement as depicted in the schematic in Figure 1. All ASD units were connected to the Dust

Chamber, Smoke Chamber and HEPA filtration arrangement through individual pipe networks (21mm ID)

and valve arrangements to allow dust loading, smoke tests and clean air sampling independent of each

other.

Figure 1: Test Setup – Schematic

4.1 Laboratory • Ventilated space

• Temperature: 21-22˚C (70 – 72˚F)

• Humidity: 40-60%RH

4.2 Dust Chamber • Dust Chamber (Figure 2) internal volume: 0.216m3 (0.6 x 0.6 x 0.6)m [7.6ft3 (1.97x1.97x1.97)ft]

Figure 2: Dust Chamber

• ASD inlets were located in close proximity to each other and their exhausts were routed back to Dust Chamber for dust recirculation.

• Test dust: ASHRAE 52/76 standard test dust – see section 4.7 for details.

Dust Chamber

Smoke

Chamber

Smoke Reference Unit

ASD

Dust Reference unit

Valve

Clean Air

Smoke Gen. Box

Dust Chamber

ASD Inlet

TSI DustTrack Inlet



• Dust injection system: Dust placed in cylinder in center of Dust Chamber equipped with compressed air manifold and lid with holes for dust to escape through compressed air action.

Mixing fans provided for turbulent airflow conditions for homogeneous dust level.

• Dust Chamber internal pressure equalised to ambient using a separate inlet.

• Dust reference unit: TSI DustTrak (PM10) particulate measuring device. Sampling was arranged

in parallel to and in close proximity to ASD inlets.

• To verify that all ASD units were subjected to similar dust loading rates a comparison was made

between dust concentration levels inside the Dust Chamber and through each ASD inlet.

Simultaneous readings were taken with two TSI DustTrak instruments; one for Dust Chamber and the other for ASD inlets. Table 2 shows minimal difference (%) in dust concentration levels

between Dust Chamber and each ASD inlet indicating similar dust loading rates being applied

for all detectors under test. Dust readings shown represent instantaneous readings where

variations are expected inside the Dust Chamber.

ASD

Dust Concentration Dust Chamber (mg/m 3)

Dust Concentration ASD Inlet (mg/m 3)

% Difference

VLI-880 14.4 15.2 +5.55

SecuriRAS ASD 535-3 16.7 16.3 -2.39

FAAST 8100 20.5 20.2 -1.46

TITANUS PRO SENS 19.2 19.0 -1.04

Table 2: Dust Concentration (Dust Chamber / ASD Inl ets)

• Dust chamber designed and assembled by VIPAC.

4.3 Smoke Generation Box and Smoke Chamber • Internal volumes (Figure 3):

o Smoke Generation Box: 0.043m3 (0.35 x 0.35 x 0.35)m [1.52ft3 (1.15 x 1.15 x 1.15)ft]

o Smoke Chamber: 0.17m3 (0.85 x 0.5 x 0.4)m [6ft3 (2.78 x 1.64 x 1.31)ft]

Figure 3: Smoke Generation Box and Smoke Chamber

• Test smoke: smouldering cotton lamp wick (grey smoke) – see section 4.8 for details.

• Smoke generated in Smoke Generation Box and introduced to Smoke Chamber. ASD sampling

occurred from Smoke Chamber with inlets placed in close proximity.

• Smoke Chamber internal pressure equalised to ambient using separate inlets. Mixing fans ensured homogeneous smoke level.

Smoke Generation Box

Smoke Chamber

ASD Inlets



• Smoke reference unit: VESDA VLC-505. Sampling arranged in parallel to and in close proximity to ASD inlets. Reference unit provided ASDs’ Response Threshold Value (RTV) – see section

5.2 for RTV explanation.

• Smoke Generation Box and Smoke Chamber designed and assembled by Xtralis.

4.4 Clean Air Sampling All ASD units’ pipe network included a separate branch for clean air sampling through a HEPA filter

arrangement (Figure 4). This allowed ASDs to be purged with clean air to ascertain detector functionality

in clean air conditions and remove residual dust after each dust exposure prior to smoke tests.

Figure 4: Clean Air Sampling Arrangement (HEPA filt er)

4.5 ASD Units Setup • All ASD units were brand new, fitted with new internal particulate filters (where applicable) –

Table 3.

ASD Particulate Filter Type

VLI-880 HEPA / Foam filter

SecuriRAS ASD 535-3 Metallic mesh (60x40)mm with (1x1)mm openings

FAAST 8100 Particle separator / Foam filter

TITANUS PRO SENS No Filtration

Table 3: ASD Particulate Filter Types

• Baseline flow rate: 40L/min. Flow rate set by orifices on ASD inlets to Dust Chamber, Smoke Chamber and HEPA filter. Flow rates measured at each ASD exhaust with hot wire anemometer

(TSI VelociCalc Plus) for each sampling phase (Table 4).

ASD Aspirator Setting

Orifice Size (mm)

Flow rate (L/min)

VLI-880 4200rpm 7.5 43

SecuriRAS ASD 535-3 Level 5 7.0 43

FAAST 8100 Fixed 7.8 43

TITANUS PRO SENS 9V 9.0 41

Table 4: ASD Baseline Flow-rates

• Pipe networks designed short as possible to minimize transport times and dust deposition (loss)

within pipe.

HEPA filter



• Alarm delays: 0 sec.

• Alarms/Faults: latched.

• ASD RTV measured at 0.12%Obs/m (0.037%Obs/ft) alarm level.

• ASD units configured and flow rates validated with respective manufacturers’ software tools (Table 5).

ASD Configuration Pipe Modelling

VLI-880 VSC 3.04.03 (S/W) ASPIRE2 2.04

SecuriRAS ASD 535-3 ASD Config 01.01.00 (S/W) ASD Pipeflow 2.0.4.3

FAAST 8100 PipeIQ 1.2.0 (S/W) PipeIQ 1.2.0

TITANUS PRO SENS (detector module)

Switch settings (DIP) –

Installation Instruction Manual Not Available

Table 5: ASD Configuration / Pipe Modelling Tools

4.6 Test Instruments Test instruments for the investigation are outlined in Table 6.

Instrument Measurand Model Serial No. Calibration

DustTrack Dust Chamber dust concentration

8250 85201887 APPENDIX A

DustTrack ASD Inlet dust concentration 8250 23390

Calibrated against Dust Chamber DustTrack (APPENDIX D)

VelociCalc Plus Pipe airflow

8386A-M-GB 02080484 APPENDIX B

VESDA Smoke concentration VLC-505 8417637 Factory calibrated

Table 6: Test Instruments

4.7 Test Dust • ASHRAE 52/76 test dust referenced in ANSI/ASHRAE Standard 52.2-2007 “Method of Testing

General Ventilation Air-Cleaning Devices for Removal Efficiency by Particle Size” – see

APPENDIX C for calibration certificate. This type of dust was chosen as it is used for the

loading of ventilation filters to simulate accumulation of particulate over service life and is representative of common dust types present in commercial and industrial environments.

• Dust concentration per loading: 10-40mg/m3.

4.8 Test Smoke • The test smoke was smouldering cotton lamp wick (grey smoke) referenced in UL268 Standard

“Smoke Detectors for Fire Alarm Systems” (2009), Section 30 – Sensitivity Test.

• The smouldering of the cotton lamp wick occurred inside the Smoke Generation Box and smoke was gradually introduced to the Smoke Chamber.



5. TEST PROCEDURE

5.1 Test Cycle A total of 14 test cycles were conducted. Each test cycle comprised dust loading of detectors, measurement of detectors sensitivity, functional checks and service/corrective actions (where required)

according to the sequence in Figure 5.

Figure 5: Test Cycle Steps

Note: An additional test cycle (#15) was conducted for the SecuriRAS ASD 535-3 unit to ascertain

sensitivity improvement with internal filter replacement.

Dust loading parameters are included in APPENDIX D.

Throughout all steps a log was maintained of ASD faults / failures and corrective actions. A replacement dust track was utilised for the

Maintenance schedule:

• At the end of each test cycle maintenance was performed on the DustTrack instrument (filter replaced, capillary cleaned, flow check, zero check).

• At end of each test cycle the Dust Chamber was cleaned and ASD pipe work purged with compressed air to clean orifices and remove dust deposits.

• Smoke reference unit (VESDA VLC-505) internal filter replaced at the end of test cycles 3, 7, 11.



5.2 Sensitivity (Detection Performance) The impact of dust sampling on detectors sensitivity (detection performance) was determined by

measuring each ASD unit Response Threshold Value (RTV) after each dust loading. The RTV is the

amount of smoke concentration the ASD is subjected to in order to generate an alarm signal according to EN54 Standard “Fire Detection and Fire Alarm Systems – Part 20: Aspirating Smoke Detectors. A change

in RTV therefore will entail a change in detector sensitivity. For example when the sensitivity of the ASD

deteriorates its RTV will increase i.e. greater amount of smoke concentration will be required for the ASD

to generate an alarm signal.

The initial baseline ASD sensitivity was determined (ASD out of box) and subsequent measurements

after each dust load were normalised against this baseline to ascertain impact on detectors’ sensitivity

(see APPENDIX E for calculation method).

For the RTV measurements, the ASD units were subjected to a slowly increasing smoke concentration at

a rate that allowed an alarm to be issued between 2 to 10 min from start of test. The ASDs’ RTV was

provided by the reference smoke detector (VESDA VLC-505) that was only operational during the smoke

tests.

5.3 Pass/Fail Criteria The following conditions constituted a failure:

• 50% reduction in ASD sensitivity. For a 50% reduction in sensitivity the ASD requires double the

amount of smoke concentration to issue an alarm signal.

• ASD hardware faults and failures (non-field maintainable items).



6. RESULTS 6.1 ASD Sensitivity (Detection Performance) Figure 6 depicts the trend lines of sensitivity (normalised) reduction for each ASD unit throughout the dust loading cycles along with the chronology of critical fault and maintenance indicators. Table 8 lists the

details of the fults and maintenance indicators and detailed normalised sensitivity results are included in

APPENDIX F.

0

20

40

60

80

100

120

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14

ASD Sensitivity -Normalised (%)

Dust Loading Cycle

VLI - 880 SecuriRAS ASD535-3 FAAST 8100 TITANUS PRO SENS

TITANUS PRO SENS Hardware M odule Failure - M odule not replaced

FAAST 8100 Filter Fault - Filter replaced

FAAST 8100 Aspirator Fault - Aspirator replaced

Figure 6: ASD sensitivity (normalised) trend lines with critical fault and maintenance indicators

The following are noted:

• All ASD units except the Xtralis VLI-800 recorded a 50% reduction in sensitivity. The Xtralis VLI-880 sensitivity for the same loading characteristics was reduced by approximately 10%.

• The TITANUS PRO SENSE issued a detector module failure during the first dust loading cycle.

• The FAAST 8100 unit issued multiple filter and aspirator faults.

• No notification was issued by the SecuriRAS ASD 535-3 unit for a 50% reduction in sensitivity.

50% drop in sensitivity



6.2 ASD Hardware Faults and Failures

6.2.1 Filter Faults

Where detectors exhibited field rectifiable faults, most commonly Filter Faults, the recommended field

maintenance was carried out as per the manufacturer’s instruction.

FAAST 8100:

From Figure 6 the FAAST 8100 unit issued four Filter Faults – fault conditions were not cleared with

detector RESET. As per manufacturer’s “Installation and Maintenance Instructions” document #I56-3630-

000 (2010), this fault indicates the device filter is clogged and requires replacement. This is a field

replacement items and in each fault condition the filter cartridge was replaced with new as per prescribed maintenance. This action did not restore the detector sensitivity.

SecuriRAS ASD 535-3:

Though the SecuriRAS ASD 535-3 has no filter status reporting function, the detector filters (metallic mesh before and after smoke sensor) were replaced with new to ascertain improvement in sensitivity.

The detector was subject to an additional dust loading cycle (#15) and its sensitivity was ascertained both

with the “loaded” and new filters (Figure 7). Replacement with new filters did not improve the detector

sensitivity as seen from Table 7.

Loaded Filter – before smoke sensor

Loaded Filter – after smoke sensor

New Filter

Figure 7: SecuriRAS ASD 535-3 Filters (metallic mes h)

Dust Loading 15 Normalised Sensitivity (%)

Loaded Filters 50

New Filters 51

Table 7: SecuriRAS ASD 535-3 Sensitivity Change wit h Filter Replacement

6.2.2 Critical Failures

From Figure 6 two ASD units (TITANUS PRO SENS, FAAST 8100) exhibited critical failures that would

require the unit to be replaced or returned for service.

1. TITANUS PRO SENS: Unit suffered “Detector Module Hardware Defect” during the first

loading cycle – fault condition was not cleared with detector RESET. According to the manufacturer’s

technical manual “Air Sampling Smoke Detection System TITANUS PROSENS” doc #69-30-0226

(2009), the detector module requires immediate replacement. This is a field serviceable item. Since only one detector module was available, testing continued for 4 dust loading cycles (unit was able to

detect smoke) despite manufacturer’s recommendation to have the detector module replaced.



2. FAAST 8100: Unit suffered frequent “Aspirator Faults”. The aspirator ceased operation a

total of 4 times in the course of testing which rendered it incapable of detecting smoke – all fault conditions were not cleared with detector RESET. According to the manufacturer’s “Installation and

Maintenance Instructions” doc #I56-3630-000 (2010), this fault indicates the fan has stopped working

and requires immediate attention. While this is not a field maintenance item for the purpose of this

investigation the faulty aspirators were replaced with new. In practice, however, each failure would

have necessitated the unit be replaced or returned for service.

ASD Fault Type Timeline Comments Corrective Actions

TITANUS PRO SENS

Detector Module Defect

2hr into dust loading #1 Detector module fault LED permanently lit

Field maintenance item Module not replaced. Fault condition maintained for remainder of test cycles

Prior to dust loading #3

Prior to dust loading #5

2hr into dust loading #11 Filter Fault

End dust loading #13

Filter fault LED permanently lit

Field maintenance item For every fault condition new filter inserted.

End of dust loading #3

1.5hr into dust loading #7

2hr into dust loading #11

FAAST 8100

Aspirator Fault

End dust loading #13

Aspirator fault LED permanently lit. Aspirator ceased operation

Non field maintenance item For every fault condition faulty aspirator replaced.

Table 8: ASD Faults Timeline / Corrective Actions



7. CONCLUSIONS Performance and reliability testing was conducted on four ASD units operating in a dust-laden

environment.

For the purpose of this investigation all ASD units were installed and configured identically (flow rate,

alarm threshold, alarm delay) and subject to identical dust loading conditions.

The findings and observations from this investigation are summarised below:

ASD Sensitivity (Detection Performance) Degradation:

Over the duration of testing significant trends were observed in ASDs’ sensitivity. Notably:

• All ASD units except the Xtralis VLI-880 experienced sensitivity degradation of more than 50%

(Table 9).

• The Xtralis VLI-880 sensitivity for the same loading characteristics was reduced by less than 10%.

• No notification was issued by the SecuriRAS ASD 535-3 unit for a 50% reduction in sensitivity.

ASD Time to 50% sensitivity drop

Sensitivity drop at end of 14 th dust cycle

VLI-880 Did not fail 10%

SecuriRAS ASD 535-3 14 cycles 50%

FAAST 8100 10 cycles 55%

TITANUS PRO SENS 4 cycles 55%*

Table 9: ASD Sensitivity Degradation

* TITANUS PRO SENS data presented for only 4 dust cycles since the detector sensitivity by that stage had reduced by more than 50%.

ASD Maintenance:

• The FAAST 8100 unit issued four filter maintenance notifications. When prescribed manufacturer’s maintenance was performed the sensitivity of the unit was not restored.

• Though the SecuriRAS ASD 535-3 unit had no filter status reporting function, replacing the heavily soiled “loaded” filters with new showed no improvement of detector sensitivity.

ASD Critical Failures: Two ASD units exhibited critical failures requiring repair:

• TITANUS PRO SENS – One “Detector Module” failure notification was issued during the first dust

loading cycle. This is a field maintenance item.

• FAAST 8100 – Four “Aspirator Fault” failures occurred. The first fault occurred after the second dust

loading cycle. This is not a field maintenance item and requires the unit to be replaced or returned to

the manufacturer for service.

A critical attribute of fire detection systems is that the system performance be maintained within

acceptable and expected bounds over the operational life of the product. While no specific comment is

made on the design of any particular ASD product tested, the results presented can be considered

significant and should be taken into consideration when selecting an ASD product for deployment in harsh (dust-laden) environments if reliable detector operation is to be maintained.



APPENDIX A DustTrack (Dust Chamber) Calibration Certificate





APPENDIX B VelociCalc Plus Air Velocity Meter (TSI) Calibration

Methodology The VelociCalc Plus air velocity hot anemometer meter was calibrated in-series with the Laminar Flow

Element (below schematic).

Instruments • Laminar Flow Meter: FC0318 DP Transmitter + Flow Element (Furness Controls Ltd). UKAS

Accredited Calibration Laboratory No.0580, Calibration Certificate No. 06632.

o Flow Element Serial Number: 1007175

o Transmitter Serial Number: 1007173

• VelociCalc Plus Air Velocity Meter (TSI): Model: 8386A-M-GB, Serial Number: 02080484

Test Ambient Conditions

• Ambient Temperature: 20°C (68°F)

• Relative Humidity: 40-60%RH

Laminar Flow Element

VelociCalc Plus

Air Flow

0.3m 0.3m 0.3m

FAN



Comparison Results









APPENDIX C ASHRAE 52/76 Calibration Certificate



APPENDIX D DustTrack Loading Analysis

Data logging Interval

Averaging time for data points

Data points per Loading (3.5 hrs)

1 minute 10 seconds 210

Table 10: DustTrak Settings

Dust Loading Cycle

Min (mg/m 3)

Mean (mg/m 3)

Max (mg/m 3)

SDEV (σ)

1 0.123 18.951 27.517 3.757

2 7.529 18.516 29.022 2.947

3 0.028 15.923 22.467 2.646

4 6.054 16.589 24.172 2.637

5 2.047 16.084 22.675 2.737

6 10.308 15.206 23.014 2.644

7 3.787 15.446 29.873 3.579

8 6.074 16.031 25.495 2.574

9 3.441 16.031 23.368 2.817

10 6.006 14.788 23.974 3.048

11 12.66 19.882 27.855 3.119

12 0.303 20.296 20.296 6.879

13 8.854 23.658 30.967 3.301

14 14.199 35.684 94.167 8.858

15 7.164 33.291 62.737 7.569

Table 11: Dust Loading Analysis

DustTrack 85201887 Average concentration

(mg/m 3)

DustTrack 23390 Average concentration

(mg/m 3)

22.84 22.79

Table 12: DustTrack Comparison Average Reading



Dusttrak Loading cycles 1 - 10

0

5

10

15

20

25

30

35

40

45

50

0 50 100 150 200 250

Data Points

Con

cent

ratio

n m

g/m

3

Loading 1 Loading 2 Loading 3 Loading 4 Loading 5 Loading 6 loading 7 Loading 8 Loading 9 Loading 10

Mean - 16.313

Figure 8: Summary Graph Dust Loading 1 - 10




Dust trak loading cycles 14-15

0

10

20

30

40

50

60

70

80

90

100

0 50 100 150 200 250

Data Points

conc

entr

atio

n m

g/m

3

Loading 14 Loading 15

Mean - 34.470




APPENDIX E Sensitivity (Normalised) Calculation

The normalized sensitivity after each dust loading was calculated as follows:

RTVN: Normalised sensitivity

RTV0: Baseline. Average of two RTV measurements (%Obs/m) taken for ASD out of box

RTVn: Average of two RTV measurements (%Obs/m) following dust loading

Example:

• RTVN = 100 � Baseline (ASD out of box)

• RTVN = 67 � 33% reduction in sensitivity � ASD requires x1.5 the amount of smoke concentration compared to baseline for alarm condition

• RTVN = 50 � 50% reduction in sensitivity � ASD requires x2 the amount of smoke concentration compared to baseline for alarm condition

1000 ×=

n

NRTV

RTVRTV



APPENDIX F Detailed Test Results – Individual ASD Units

VLI - 880 FAAST 8100 SecuriRAS

ASD535 TITANIUS PRO

SENS

Baseline (ASD out of box)

Smoke Test 1 (%/m) 0.211 0.460 0.318 0.297

Smoke Test 2 (%/m) 0.195 0.490 0.332 0.280

Average RTV 0 (%/m) 0.203 0.475 0.325 0.289

RTVN (%) 100 100 100 100

Dust Loading 1

Smoke Test 1 (%/m) 0.249 0.560 0.366 0.366

Smoke Test 2 (%/m) 0.170 0.556 0.388 0.417

Average RTV 1 (%/m) 0.210 0.558 0.377 0.392

RTVN (%) 97 85 86 74

Dust Loading 2

Smoke Test 1 (%/m) 0.213 0.671 0.37 0.448

Smoke Test 2 (%/m) 0.210 0.666 0.392 0.494

Average RTV 2 (%/m) 0.212 0.669 0.381 0.471

RTVN (%) 96 71 85 61

Dust Loading 3

Smoke Test 1 (%/m) 0.187 0.648 0.386 0.520

Smoke Test 2 (%/m) 0.195 0.702 0.424 0.484

Average RTV 3 (%/m) 0.191 0.680 0.405 0.502

RTVN (%) 106 70 80 57

Dust Loading 4

Smoke Test 1 (%/m) 0.199 0.722 0.471 0.595

Smoke Test 2 (%/m) 0.227 0.603 0.468 0.663

Average RTV 4 (%/m) 0.213 0.663 0.470 0.629

RTVN (%) 95 72 69 46

Dust Loading 5

Smoke Test 1 (%/m) 0.197 0.631 0.450 NT*

Smoke Test 2 (%/m) 0.189 0.722 0.458 NT

Average RTV 5 (%/m) 0.193 0.677 0.454

RTVN (%) 105 70 72

Dust Loading 6

Smoke Test 1 (%/m) 0.249 0.814 0.470 NT

Smoke Test 2 (%/m) 0.190 0.716 0.476 NT

Average RTV 6 (%/m) 0.220 0.765 0.473

RTVN (%) 92 62 69




ASD535 TITANIUS PRO

SENS

Dust Loading 7

Smoke Test 1 (%/m) 0.198 0.738 0.510 NT

Smoke Test 2 (%/m) 0.245 0.852 0.503 NT

Average RTV 7 (%/m) 0.222 0.795 0.507

RTVN (%) 92 60 64

Dust Loading 8

Smoke Test 1 (%/m) 0.248 1.008 0.514 NT

Smoke Test 2 (%/m) 0.231 0.817 0.513 NT

Average RTV 8 (%/m) 0.240 0.913 0.514

RTVN (%) 85 52 63

Dust Loading 9

Smoke Test 1 (%/m) 0.219 0.765 0.608 NT

Smoke Test 2 (%/m) 0.208 0.830 0.575 NT

Average RTV 9 (%/m) 0.214 0.798 0.592

RTVN (%) 95 60 55

Dust Loading 10

Smoke Test 1 (%/m) 0.199 1.015 0.508 NT

Smoke Test 2 (%/m) 0.262 0.965 0.498 NT

Average RTV 10 (%/m) 0.231 0.990 0.503

RTVN (%) 88 48 65

Dust Loading 11

Smoke Test 1 (%/m) 0.257 1.008 0.549 NT

Smoke Test 2 (%/m) 0.263 0.982 0.605 NT

Average RTV 11 (%/m) 0.260 0.995 0.577

RTVN (%) 78 48 56

Dust Loading 12

Smoke Test 1 (%/m) 0.213 0.838 0.593 NT

Smoke Test 2 (%/m) 0.229 0.907 0.59 NT

Average RTV 12 (%/m) 0.221 0.873 0.592

RTVN (%) 92 54 55

Dust Loading 13

Smoke Test 1 (%/m) 0.219 0.999 0.606 NT

Smoke Test 2 (%/m) 0.214 1.000 0.590 NT

Average RTV 13 (%/m) 0.217 1.000 0.598

RTVN (%) 94 48 54

Dust Loading 14

Smoke Test 1 (%/m) 0.200 1.090 0.678 NT

Smoke Test 2 (%/m) 0.212 1.024 0.642 NT

Average RTV 14 (%/m) 0.206 1.057 0.660

RTVN (%) 99 45 49




ASD535 TITANIUS PRO

SENS

Dust Loading 15 – Loaded Filters

Smoke Test 1 (%/m) NT NT 0.651 NT


Average RTV 15 (%/m) 0.651

RTVN (%) 50

Dust Loading 15 – New Filters



Average RTV 15 (%/m) 0.638

RTVN (%) 51

NT: Not Tested

Table 13: Detailed Results: Smoke Tests / Normalise d Sensitivity

Documents

Test Report — ASD Performance and Reliability …xtralis.com/misc/VIPAC Test Report - ASD Performance and...Vipac Reference: 30V-11-0424-TRP- 264755-0 ASD – Performance and Reliability